$j("#page_nav_diff").html("<%= escape_javascript(render('diff')) %>");
replace_state("<%= assembly_design_platform_path(@assembly,
                                                 @platform,
                                                 :committed    => params[:committed],
                                                 :changes_only => params[:changes_only],
                                                 :owner        => 'design',
                                                 :anchor       => 'diff') %>");
hide_modal();
